Home / 149,687.08-206,562.98-89,226.59

Finding the Fourth Proportional to 149,687.08, 206,562.98 and 89,226.59

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Solution

The fourth proportional to 149,687.08, 206,562.98 and 89,226.59 is: 123,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,687.08 : 206,562.98 = 89,226.59 : x
  2. Step 2: Convert to fraction form
    149,687.08/206,562.98 = 89,226.59/x
  3. Step 3: Cross multiply
    149,687.08x = 206,562.98 × 89,226.59
  4. Step 4: Simplify right side
    149,687.08x = 18,430,909,515.89
  5. Step 5: Solve for x
    x = 18,430,909,515.89/149,687.08
  6. Step 6: Final answer
    x = 123,129.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.